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Sumatra - IODP map

Sediments tell a tsunami story.

Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records. More...




Contact Information

Dr. Wendy Kirk 


CIPS

Mars In The Classroom


Mars in the Classroom provides an exciting program of hands-on and thought-provoking science activities for children aged 13 to 16. 

"Mars is there, waiting to be reached."

Mars, the`red planet', shines with almost a blood red colour in the night sky

More info...
Mars In The Classroom


  • The project is themed around the students planning their own manned mission to Mars, and comprises a series of modules to be carried out in small groups.
  • The experiments within each module of Mars in the Classroom can be used either as stand-alone projects or in combination with any or all of the other modules provided. In this way, the educator has complete control over the duration and level of the program undertaken.
  • The aim of the project is to provide a stimulating program that can compliment the National Curriculum, introducing students (and educators!) to the excitement of planetary science.